*{
	padding: 0;margin: 0;
}
li{
	list-style: none;
}
a{
	text-decoration: none;
}
.nav{
	width: 100%;
	height: 40px;
	background: #f6f6f6;
	margin-top: 100px;
	
}
.nav_con{
	width:1000px ;
	height: 40px;
	margin: 0 auto;
	position: relative;
}
.nav_con li{
	float: left;
}
.nav_con li a{
	display: block;
	padding:  0 30px;
	line-height: 40px;
	color: #333;
}
.nav_con li a:hover,.nav_con li a.on{
	color: #35b558;
}
.nav_con .line{
	width: 150px;
	height: 3px;
	position: absolute;
	left: 0;
	top: 40px;
	background: #35b558;
}
